STEU 500/23

Control- and isolating transformer

Version STEU 500/23
Rated input voltage 230/400 Vac Rated output voltage 2 x 115 Vac Rated power VDE (DB cos phi=1) 500 VA
Version Rated input voltage Rated output voltage Rated power VDE (DB cos phi=1)
STEU 20/23 230/400 Vac 2 x 115 Vac 20 VA
STEU 20/24 230/400 Vac 24 Vac 20 VA
STEU 63/24 230/400 Vac 2 x 12 Vac 63 VA
STEU 63/48 230/400 Vac 2 x 24 Vac 63 VA
STEU 63/23 230/400 Vac 2 x 115 Vac 63 VA
STEU 100/24 230/400 Vac 2 x 12 Vac 100 VA
STEU 100/48 230/400 Vac 2 x 24 Vac 100 VA
STEU 100/23 230/400 Vac 2 x 115 Vac 100 VA
STEU 160/24 230/400 Vac 2 x 12 Vac 160 VA
STEU 160/48 230/400 Vac 2 x 24 Vac 160 VA
STEU 160/23 230/400 Vac 2 x 115 Vac 160 VA
STEU 250/24 230/400 Vac 2 x 12 Vac 250 VA
STEU 250/48 230/400 Vac 2 x 24 Vac 250 VA
STEU 250/23 230/400 Vac 2 x 115 Vac 250 VA
STEU 320/24 230/400 Vac 2 x 12 Vac 320 VA
STEU 320/48 230/400 Vac 2 x 24 Vac 320 VA
STEU 320/23 230/400 Vac 2 x 115 Vac 320 VA
STEU 400/24 230/400 Vac 2 x 12 Vac 400 VA
STEU 400/48 230/400 Vac 2 x 24 Vac 400 VA
STEU 400/23 230/400 Vac 2 x 115 Vac 400 VA
STEU 500/24 230/400 Vac 2 x 12 Vac 500 VA
STEU 500/48 230/400 Vac 2 x 24 Vac 500 VA
STEU 500/23 230/400 Vac 2 x 115 Vac 500 VA
STEU 630/24 230/400 Vac 2 x 12 Vac 630 VA
STEU 630/23 230/400 Vac 2 x 115 Vac 630 VA
STEU 630/48 230/400 Vac 2 x 24 630 VA
STEU 800/24 230/400 Vac 2 x 12 Vac 800 VA
STEU 800/48 230/400 Vac 2 x 24 Vac 800 VA
STEU 800/23 230/400 Vac 2 x 115 Vac 800 VA
STEU 1000/24 230/400 Vac 2 x 12 Vac 1,000 VA
STEU 1000/48 230/400 Vac 2 x 24 Vac 1,000 VA
STEU 1000/23 230/400 Vac 2 x 115 Vac 1,000 VA
STEU 1600/23 230/400 Vac 2 x 115 Vac 1,600 VA
STEU 2000/23 230/400 Vac 2 x 115 Vac 2,000 VA
STEU 2500/23 230/400 Vac 2 x 115 Vac 2,500 VA

Technical data for STEU 500/23

Input
Rated input voltage 230/400 Vac
Tappings Input ±15 V
Rated frequency 50 - 60 Hz
Output
Rated output voltage 2 x 115 Vac
Rated power VDE (DB cos phi=1) 500 VA
Rated power VDE (KB cos phi=0.5) 2.000 VA
No-load voltage (app. x factor) 1.04
Efficiency 92.0 %
Standards
Classification Control- and isolating transformer
Approvals
Approvals cURus, EAC
Environment
Ambient temperature max. 40 °C
Type of cooling self-cooling
Safety and protection
Type Open type
Insulation class VDE=B, UL=class 130
Protection index IP 00
Safety class (prepared) I
Short circuit strength non-short-circuit proof
PRI Fusing recommendation by circuit breaker with tripping characteristic type 20 x Irated related to set)
Setting range 230 ±15 Vac 1.60 - 2.50 A
Setting value 230 ±15 Vac 2.40 A
Setting range 400 ±15 Vac 1.00 - 1.60 A
Setting value 400 ±15 Vac 1.40 A
Terminal and mounting
Fixing method Base plate
Fixing screws M5
Terminals Input 4 mm² spring terminal
Terminals Output 4 mm² spring terminal
Terminals PE Tab connector, 6.3 x 0.8 mm
Measures and weights
Depth 124 mm
Height 121 mm
Width 120 mm
Weight 7.7 kg

Info on STEU series

General Data
  • Insulation class B
  • Degree of protection IP 00
  • Efficiency up to 94 %
  • Maximum ambient temperature 40 °C
  • Rated power 63 - 2,500 VA
  • Rated output voltage 24 - 230 Vac
  • Rated input voltage 230 and 400 Vac
Benefits
  • Simple mounting thanks to robust metal footplate with oval slots
  • Primary side ±15 V tappings for voltage adjustment
  • Dual input voltage 230 and 400 Vac
  • Very good switch-on behaviour thanks to reduced starting currents
  • High power density due to a compact construction design
  • Contact protected screw connection terminals complying with UVV BGV A3
  • Very good corrosion protection and low noise thanks to BLOCK IMPEX vacuum impregnation
  • Up to 250 VA with combination footplate for bolted and rail mounting
  • Quick to cable up thanks to the use of spring-clamp terminals

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